Quote Originally Posted by Montecarlodrag View Post
I asked to TC and was told OBD2 software does not have lock capabilities. So how are people locking PCMs with TC?
I use a program i aquired and EFIlive to unlock them to assign a stock key maybe the vin tc vin match is the only thing i see or custom encrypted files but definatly not a lock.

The dealer version of the WinFlash OBDII program is a fully functional version that can read and program and all the vehicles currently supported by the OBDII Tuner program. The dealer version of the program differs in that it does not allow the vehicle's VIN to be changed and when programming a PCM the VIN in the calibration file must match the VIN currently stored in the PCM that's being programmed. This prevents the customer from using the calibration on a vehicle other than the intended one.

If requested, the dealer version of the program can be set to only accept encrypted calibration files that you encrypt with a unique encryption key so your calibration files can not be used with the standard versions of the OBDII Tuner or WinFlash OBDII programs.